Sewage Sampling Robots Speed SARS-CoV-2 Detection As well as shedding SARS-CoV-2 virus through nose and throat secretions, infected people can, even when asymptomatic, excrete the virus in their stool. Because of this, wastewater sampling has been under investigation since the beginning of the pandemic. An automated wastewater monitoring technique could enable researchers to predict outbreaks of the virus up to a week in advance. Knight Lab May 7, 2021 0 Share